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Finding the Fourth Proportional to 1,095.68, 1,641.35 and 633.17

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Solution

The fourth proportional to 1,095.68, 1,641.35 and 633.17 is: 948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.68 : 1,641.35 = 633.17 : x
  2. Step 2: Convert to fraction form
    1,095.68/1,641.35 = 633.17/x
  3. Step 3: Cross multiply
    1,095.68x = 1,641.35 × 633.17
  4. Step 4: Simplify right side
    1,095.68x = 1,039,253.58
  5. Step 5: Solve for x
    x = 1,039,253.58/1,095.68
  6. Step 6: Final answer
    x = 948.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.